The question now is what did they mean by "flour"? 
The question, from the outset, was "coconut powder....is coconut flour the same thing?"
The response he got seems clear to me. Where's the doubt?
Anything but, as far as I'm concerned.
A, still unanswered, question is what is meant by "coconut powder". Does that mean "coconut flour" or "coconut milk powder'?
Furthermore, no one has yet determined what "flour" is, other than my suggestion that it's finely ground dessicated coconut. Is that what it is?
I asked in an Asian supermarket if they sell "coconut flour" and she looked puzzled and said she's never heard of it and offered coconut milk powder or desiccated coconut instead.
I saw in another that they had bags labelled "coconut flour" and these seemed to contain finely ground desiccated coconut (something I've always used but prefer to use coconut milk powder, as well as, or instead of, for it's smoothness, creaminess, lack of graininess and lack of dryness).